It was narrated from ‘Aishah that the Messenger of Allah صلی اللہ علیہ وآلہ وسلم sent a man on a campaign, and he used to recite to his Companions when leading them in prayer, and would conclude with. “Say: He is Allah, (the) One.” When they returned, they told the Messenger of Allah صلی اللہ علیہ وآلہ وسلم about that. He said: “Ask them why he did that.” So they asked him and he said: “Because it is a description of the Most Merciful, the Mighty and Sublime, and I love to recite it.” The Messenger of Allah صلی اللہ علیہ وآلہ وسلم said:
“Tell him that Allah, the Mighty and Sublime, loves him.” (Sahih)